Gas-heater.



S. L. SMITH;

GAS HEATER. APPLICATION FILED NOV. 19, 19H. Y

Patented Apr. 30

mmh/woo S. L. SIVHTH.

GAS HEATER.

APPLICATION man Nuv.19. 1911.

Patented Apr. 30 1918.

2 SHEETS-SHEE 2..

SIDNEY L. SMITH, OF PITTSBURGH, PENNSYLVANIA.

sas-HEATER.

Specification of Letters Patent.

Patented Apr. 30, 191%.`

Application filed November 19, 1917. Serial No. 202,799.

T all Lo/0m t may concern Be it known that I, SIDNEY L. SMITH, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Gas- I-Ieaters; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide a comparatively simple and inexpensive, yet a highly efficient and durable gaseous fuel heater' so constructed as to permit the Y heating of a large quantity of air in a small time.

1With the foregoing general object in view, the invention resides in the novel features of construction and unique combina tions of parts to be hereinafter' fully described and claimed, the descriptive matter being supplemented by the accompanying drawings which form a part of this specification and in which Figure 1 is a side elevation of the improved heater;

Fig. 2 is a vertical section thereof;

Figs. 3, i and 5 are horizontal sectional views on the planes indicated by the lines 3-3, Z 3f-land 5 5 respectively of Fig. 2; and

Fig, 6 is a perspective view of the vertically adjustable support for the spreader and the refractory body carried thereby.

In the drawings above briefly described7 the numeral 1 designates a suitable base having a gas inlet nipple 2 which may well be provided with the usual hose 3, although a rigid gas pipe could be employed should occasion so demand. A vertical pipe l rises from the base 1 and communicates with the nipple 2, the upper end of said pipe having an air mixer which may be controlled in the usual manner by rotation of the disk 6. A burner support in the form of a relatively large pipe 7 is threaded into and rises from the air mixer 5, the upper end of said support being threaded through a burner head 8 whose upper end is formed with a cavity 9.

Spaced above the burner head 8, is a spreader 10 which is preferably of the disk type shown, said spreader being supported by the upper end of a plurality of arms 11 which rise from a tube 12, said tube being mounted slidably in the hollow support 7 as shown clearly in Fig. 2. lNear its lower end, the tube 12 is provided with a pair of opposed yokes 13 which extend through slots 14; formed longitudinally in the ho1 low support 7. The yokes 13 pass around an adjusting nut 15 which is threaded on the support 7, whereby rotation of this nut will raise and lower the tube 12 to adjust the spreader 10 as occasion may demand.

Resting on the spreader' 10, is a vertically elongated refractory body 1G which is preferably of the cone shape formation shown in Fig. 2, said body having a verticalbore 17 which receives a suitable stem 18, the latter rising centrally from the spreader 10 and having a nut 19 on its upper end so that the body 16 will be held in place.

A collar 20 is shown threaded on the support 7 and contacting with the lower end of the burner head 8, said collar receiving thereon a plurality of vertical spacing sleeves 21 whose upper ends support a horizontal ring 22, the outer edge of this ring being preferably bent upwardly to form an annular flange 23. A frusto cone shaped casing section 24 fits over the flange 23 and is held against removal by fingers 25 which extend inwardly from brackets 26 secured to the lower end of said section. The ring 22 is formed with perforations 27 which permit air to enter, so that this air is heated as it rises through the casing.

The upper end of the lower section 241 is received loosely in the lower end of an upper casing section 28, suitable brackets 29y being provided for supporting said upper section from the other. Suiicient space 30 exists between the two sections to permit air to enter at this level, and it will be obvious that any suitable number of casing sections could be employed. I have found that the heating efliciency of this device increases as these sections are added, and I therefore prefer to use several of said sections.

In operation, the air mixer 5 is properly adjusted and the spreader 10 is set at the most advantageous distance above the burner head 8. The flame from the head is thrown into Contact with the casing and with the refractory body 16, so that both are heated to a white heat, all sections of said casing being preferably lined at 81 with suitable iireproof material. in order to prevent them from being injured by the excessive heat. The air enters the device through the perforations 27 and through the one or more annul-ar spaces such as 30, and as this air comes in contact with the heated parte as Well as the llame, it becomes quickly and highly heated. Actual experience has taught that in approximately live minutes, extremely cold air in a room Seventeen feet VSquare may be heated to a comfortable temperature. Furthermore, the device has proven to be very economical in fuel.

In addition to the above uses and advantages, the device may Well be used in a hot air furnace or the like and will operate to equal advantage Whether constructed 'for use vertically or horizontally.

On account of the sei/eral advantages derived from the specific details shown and described, these details will in most cases be followed, but l wish it understood that Within the scope of the inventionE as claimed, numerous minor changes may Well be made.

I claim:

l. A heater comprising a burner head and a spreader adjacent the same, a hollow support for said head, a spreader supporting and fuel conductingl tube slidable in Iaid support and carrying said spreader, and means for adjusting Said tube longitudinally, the outer end of said tube having a fuel outlet.

2. A heater comprising` a burner head and SDNEY L. Shllfll l.

lVitnesses JAMES A. Mnnonn, M. Mosmmii.

Gopiee of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C. 

